WORLD4SOLAR vs OMMO Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WORLD4SOLAR
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Photovoltaic power plant operation management, convenient and quick view of the power plant. Master the status of the power station in real time. Every day, every month, every year, the power generation is clear at a glance.
OMMO Smart
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1. The most advanced datalogger can be used for data monitoring 2. Accurate data, dynamic graph display, clear and clear 3. One click device addition 4. Data from multi-angle professional analysis equipment
Screenshots
Verdict
WORLD4SOLAR and OMMO Smart are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WORLD4SOLAR ships an update every 5 weeks, OMMO Smart every 2 months. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.
| Parameter | WORLD4SOLAR | OMMO Smart |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 85 MB | 101 MB |
| Age rating | 4+ | 17+ |
| Developer | Chengdu E-Linter Information Technology Co., Ltd. | Shenzhen Energy Control Cloud Technology Co., Ltd |
In-app purchases
WORLD4SOLAR
No in-app purchases
OMMO Smart
No in-app purchases
